Lamp



FIG. 1 is a top plan view of the lamp embodying our new design;

FIG. 2 is a right side elevational view thereof, the left side elevational view being a mirror image thereof;

FIG. 3 is a front elevational view thereof, the rear elevational view being a mirror image thereof;

FIG. 4 is a front elevational view without the lamp shade in place;

FIG. 5 is a perspective view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines in the drawings depict environmental subject matter only and form no part of the claimed design. 

The ornamental design for a lamp, as shown and described. 